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Round|Lab Grown|IGI

4.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG592320708

Shape and cutting style on the report: Round brilliant

Certificate IGI LG592320708

Diamond specifications and retailer prices

From €1,940 EUR
$2,167 USD
As of November 1, 2026
Save €6,635 EUR (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €8,575 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.23ct lab-grown round diamond

This 4.23ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG592320708 or 592320708. Listed at 22 retailers as of October 31, 2026, with prices from €1,940 to €8,575, a €6,635 spread on the same certified stone. Brilliant Earth lists it at €8,575. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.23
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592320708
Dimensions10.33 × 10.37 × 6.39 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.33 mm10.37 mm4.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592320708
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €8,575 EUR|Low: €1,862 EUR|High: €10,508 EUR|Avg: €3,820 EUR|-18.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 16€1,940 EUR
Retailer 6€2,110 EUR
Retailer 8€2,171 EUR
Retailer 4€2,249 EUR
Retailer 14€2,399 EUR
Retailer 5€2,461 EUR
Retailer 10€3,059 EUR
Retailer 7€3,093 EUR
Retailer 15€3,526 EUR
Retailer 11€3,560 EUR
Retailer 2€3,713 EUR
Retailer 12€4,789 EUR
Retailer 9€4,820 EUR
Retailer 3€5,811 EUR
Retailer 13€6,136 EUR
Brilliant Earth€8,575 EUR

44 data points across 16 retailers

22 retailers€1,940 EUR to €8,575 EUR

A
Cheapest Retailer
-
€1,940 EUR
$2,167 USD
A
Retailer 2
-
€2,110 EUR
$2,357 USD
View
A
Retailer 3
-
€2,171 EUR
$2,426 USD
View
Final sale: no returns
A
Retailer 4
-
€2,249 EUR
$2,513 USD
View
Retailer 5
-
€2,249 EUR
$2,513 USD
View
Price last confirmed 21 days ago
A
Retailer 6
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€2,399 EUR
$2,680 USD
View
A
Retailer 7
-
€2,461 EUR
$2,750 USD
View
A
Retailer 8
-
€3,059 EUR
£2,691 GBP
View
A
Retailer 9
-
€3,093 EUR
$3,455 USD
View
A
Retailer 10
-
€3,526 EUR
$3,939 USD
View
A
Retailer 11
-
€3,560 EUR
View
A
Retailer 12
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€3,713 EUR
$4,148 USD
View
A
Retailer 13
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€3,944 EUR
$4,406 USD
View
A
Retailer 14
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€4,789 EUR
ZAR 86,430 ZAR
View
A
Retailer 15
-
€4,820 EUR
A$8,284 AUD
View
B+
Retailer 16
-
€5,811 EUR
$6,492 USD
View
B+
Retailer 17
-
€6,007 EUR
$6,711 USD
View
B+
Retailer 18
-
€6,136 EUR
£5,398 GBP
View
B+
Retailer 19
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€6,375 EUR
$7,122 USD
View
B+
Retailer 20
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€6,456 EUR
$7,212 USD
View
B+
Retailer 21
-
€7,864 EUR
$8,786 USD
View
Most Expensive
B+
Brilliant Earth
10021954A · Oct 31
€8,575 EUR
$9,580 USD
View
21 more retailers have this diamond
Prices start from €1,940 EURSave up to €6,635 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.23ct Round
€1,940 EUR